The reconstruction of the positron trajectory in the MEG II experiment searching for the μ+e+γ decay uses a cylindrical drift chamber operated with a helium-isobutane gas mixture. A stable performance of the detector in terms of its electron drift properties, avalanche multiplication, and with a gas mixture of controlled composition and purity has to be provided and continuously monitored. In this paper we describe the strategies adopted to meet the requirements imposed by the target sensitivity of MEG II, including the construction and commissioning of a small chamber for an online monitoring of the gas quality.

Gas distribution and monitoring for the drift chamber of the MEG II experiment / Cavoto, G; Meucci, M; Ripiccini, E; Voena, C. - In: JOURNAL OF INSTRUMENTATION. - ISSN 1748-0221. - 13:6(2018), pp. P06018-P06018. [10.1088/1748-0221/13/06/P06018]

Gas distribution and monitoring for the drift chamber of the MEG II experiment

Cavoto, G
Membro del Collaboration Group
;
Meucci, M
Membro del Collaboration Group
;
Ripiccini, e
Membro del Collaboration Group
;
voena, c
Membro del Collaboration Group
2018

Abstract

The reconstruction of the positron trajectory in the MEG II experiment searching for the μ+e+γ decay uses a cylindrical drift chamber operated with a helium-isobutane gas mixture. A stable performance of the detector in terms of its electron drift properties, avalanche multiplication, and with a gas mixture of controlled composition and purity has to be provided and continuously monitored. In this paper we describe the strategies adopted to meet the requirements imposed by the target sensitivity of MEG II, including the construction and commissioning of a small chamber for an online monitoring of the gas quality.
2018
Gas systems and purification; Gaseous detectors; Wire chambers (MWPC, Thin-gap chambers, drift chambers, drift tubes, proportional chambers etc); Instrumentation; Mathematical Physics
01 Pubblicazione su rivista::01a Articolo in rivista
Gas distribution and monitoring for the drift chamber of the MEG II experiment / Cavoto, G; Meucci, M; Ripiccini, E; Voena, C. - In: JOURNAL OF INSTRUMENTATION. - ISSN 1748-0221. - 13:6(2018), pp. P06018-P06018. [10.1088/1748-0221/13/06/P06018]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1176332
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